Formulations with the capacity to increase the efficiency of plants to assimilate different mineral nutrients, especially iron, in normal conditions and in conditions of deficiency of potentially assimilable iron

Abstract

The object of the present invention is a new set of formulations with the potential to increase the efficiency of a plant's assimilation of nutrients both in normal conditions and in conditions of nutrient deficiency. It is especially effective in the case of iron assimilation in conditions of deficiency of this micronutrient, by improving and potentiating a plant's specific response to iron deficiency, increasing the plants capacity to mobilize and assimilate the iron present in non-assimilable forms.

1 . Formulation to increase a plant's assimilation of iron in normal conditions and in conditions of deficiency of this micronutrient, but also of copper, magnesium, zinc, boron, phosphorus, potassium, calcium or magnesium; through the root or leaf, consisting in one or several of the designated compounds presenting the following formula:  
     
       
         
         
             
             
         
       
     
     Where R 1 , R 2 , R 3 , R 4 , R 5 , R 6  and R 7  can be hydrogen, an alkyl, aryl or phenyl residue.  
   
   
       2 . Formulation according to  claim 1  in which the designated compound is the indol.  
   
   
       3 . Formulation according to  claim 2  in which indol is formulated with tryptophan (D or L isomer or the racemic mixture D,L).  
   
   
       4 . Formulation according to any of  claims 1  to  3  which also includes mineral nutrients and/or biostimulants.  
   
   
       5 . Formulation according to  claim 4  in which the mineral nutrients are selected from among nitrogen, phosphorus, potassium, calcium, magnesium, iron, copper, manganese, boron, titanium, nickel, molybdenum, zinc and its mixtures.  
   
   
       6 . Formulation according to either of claims  4  or  5  in which the biostimulants are selected from among humic and fulvic acids, seaweed extracts, methionine, glycine-betaine, tryptophan, betains, glycine, cytokines, auxins, gibberellins, abscisic acid, salicylic acid, ethylene or products that release ethylene, nitric oxide or products that release nitric oxide, polyamines, brasinosteroids, adenine, adenosine, cyclic nucleotides, alcohol isopentyl or its mixtures  
   
   
       7 . Formulation according to any of  claims 1  to  6  that can be presented as a liquid or solid formulation.  
   
   
       8 . Formulation according to claims  1 - 7  that can be applied to the leaves or roots of all types of plants.